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Título

Emulsion polymerization of styrene and methyl methacrylate using a hydrophobically modified inulin and comparison with other surfactants

AutorNestor, Jérémie; Esquena, Jordi; Solans, Conxita; Levecke, Bart; Booten, Karl; Tadros, Tharwat F.
Palabras clavePolymerization of poly(methyl methacrylate)
PMMA
INUTEC SP1
Surfactants
Emulsion polymerization process
Fecha de publicación29-abr-2005
EditorAmerican Chemical Society
CitaciónLangmuir 21(11): 4837–4841 (2005)
ResumenThe use of a new class of graft polymer surfactants, based on inulin, in emulsion polymerization of poly(methyl methacrylate) (PMMA) and polystyrene (PS) particles is described. PS and PMMA were synthesized by emulsion polymerization, and stable particles with a high monomer content (50 wt %) were obtained with a very small amount of polymeric surfactant ([surfactant]/[monomer] = 0.0033). The latex dispersions were characterized by dynamic light scattering and by transmission electron microscopy to obtain the average particle size and the polydispersity index, and the stability was determined by turbidimetry measurements and expressed in terms of critical coagulation concentration. The last section gives a comparison of PMMA particles prepared by emulsion polymerization using classical surfactants from different types as emulsifiers with that obtained using the copolymer surfactant. It shows the superiority of INUTEC SP1 as it is the only one that allows stable particles at 20 wt % monomer content, with a smaller ratio [surfactant]/[monomer] = 0.002.
Descripción5 pages, 6 figures, 3 tables.-- PMID: 15896021 [PubMed].-- Printed version published May 24, 2005.
Versión del editorhttp://dx.doi.org/10.1021/la047018y
URIhttp://hdl.handle.net/10261/16007
DOI10.1021/la047018y
ISSN0743-7463 (Print)
1520-5827 (Online)
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